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Sioux City

$160+ Cheap flights from O'Hare Intl (ORD) to Sioux City (SUX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SUX
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Sioux City (SUX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 13, 2025.

Round-trip from

$244
(United Airlines)

One-way from

$160
(Trip.com)

Popular in

May

Cheapest in

January

Average price

$358
From Chicago O'Hare Intl to Sioux City Sioux Gateway
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One-way flight from Chicago O'Hare Intl to Sioux City Sioux Gateway
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Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from O'Hare Intl to Sioux City

Cheapest flights from O'Hare Intl to Sioux City
Explore the most affordable flight options available from O'Hare Intl to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:10 pmORD - SUX
Nonstop1h 49mUnited Airlines
Sun 12/217:45 amSUX - ORD
Nonstop1h 44mUnited Airlines
Deal found 8/10$244
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/299:05 pmORD - SUX
Nonstop1h 52mUnited Airlines
Sun 8/317:49 amSUX - ORD
Nonstop1h 51mUnited Airlines
Deal found 8/11$326
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/229:05 pmORD - SUX
Nonstop1h 52mUnited Airlines
Mon 8/257:49 amSUX - ORD
Nonstop1h 51mUnited Airlines
Deal found 8/11$340
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/158:50 pmORD - SUX
Nonstop1h 50mUnited Airlines
Sun 8/1710:10 amSUX - ORD
Nonstop1h 44mUnited Airlines
Deal found 8/12$354
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:05 pmORD - SUX
Nonstop1h 52mUnited Airlines
Tue 9/167:49 amSUX - ORD
Nonstop1h 51mUnited Airlines
Deal found 8/12$355

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Sioux City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 13, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sioux City that are best for you.

Fly from

O'Hare Intl

Fly to

Sioux City

Route

Depart

Return

Price

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Tue 12/9

9:10 pm-10:59 pm

Nonstop1h 49m

Sioux City Sioux Gateway

Sun 12/21

7:45 am-9:29 am

Nonstop1h 44m

$244

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 8/29

9:05 pm-10:57 pm

Nonstop1h 52m

Sioux City Sioux Gateway

Sun 8/31

7:49 am-9:40 am

Nonstop1h 51m

$326

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 10/9

9:08 pm-11:00 pm

Nonstop1h 52m

Sioux City Sioux Gateway

Sun 10/12

7:50 am-9:41 am

Nonstop1h 51m

$326

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Tue 9/9

9:05 pm-10:57 pm

Nonstop1h 52m

Sioux City Sioux Gateway

Tue 9/16

7:49 am-9:40 am

Nonstop1h 51m

$355

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Sun 9/14

9:05 pm-10:57 pm

Nonstop1h 52m

$160

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 1/22

9:05 pm-10:45 pm

Nonstop1h 40m

$161

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Thu 9/11

9:05 pm-10:57 pm

Nonstop1h 52m

$161

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 8/29

9:05 pm-10:57 pm

Nonstop1h 52m

$161

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Fri 10/10

9:08 pm-11:00 pm

Nonstop1h 52m

$161

ChicagoSioux City

ORD - SUX

ORDSUX

Chicago O'Hare Intl

Wed 9/10

9:05 pm-10:57 pm

Nonstop1h 52m

$161

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 14 results
1
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Best time to book a flight from O'Hare Intl to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Sioux City

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Sioux City?

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sioux City (average of $318). Flying from Chicago O'Hare Intl Airport to Sioux City in March is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to SUX?

Find hourly flight availability from O'Hare Intl to Sioux City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Sioux City at noon. Doing so could potentially save you 8% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Chicago O'Hare Intl Airport to Sioux City

Explore weekly flight availability from O'Hare Intl to Sioux City. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 13, 2025.

The most flights from ORD to SUX are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Sioux City

Get insights into the airlines that provide service to Sioux City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux City. Reviews last updated August 13, 2025.
See what other customers who have flown with United Airlines from Chicago O'Hare Intl Airport to Sioux City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,920 reviews

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,920 reviews
United Airlines
7.4
Good
8,920 reviews

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sioux City from Chicago O'Hare Intl?

    Sioux City Sioux Gateway (SUX), located 7.0 mi from the city center, is the airport you fly into when you book flights from Chicago O'Hare Intl to Sioux City. 1 airline have flights to Sioux Gateway from Chicago O'Hare Intl on a regular basis. Booking flights from Chicago O'Hare Intl to Sioux City Sioux Gateway should not be difficult; the airport handles an average of 1 inbound flight from Chicago O'Hare Intl per day.

  • What is the cheapest airline to fly from Chicago O'Hare Intl Airport to Sioux City round-trip?

    Currently priced at $244, United Airlines will fly you from Chicago O'Hare Intl Airport to Sioux City and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. United Airlines is currently priced 31% below the average price you’ll pay for this route.

  • Can I find deals for flights from O'Hare Intl to Sioux City that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Sioux City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Sioux City.

  • Can I find deals for business class flights from O'Hare Intl to Sioux City?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Sioux City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Sioux City?

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sioux City (average of $318). Flying from Chicago O'Hare Intl Airport to Sioux City in March is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

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Top airline flying from O'Hare Intl to Sioux City

Discover the top airline that operate flights from O'Hare Intl to Sioux City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$214Average$326FlexibilityNo cancel feeOn-time69%

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